approx_view_dir, name):

proj_math = VR_math.VRScreenData(corners_3d,#approx_view_dir=approx_view_dir,

name=name)

cam_viewport = Viewport(screen=screen,

auto_pixel_projection=False,

)

result = dict(screen_data=proj_math,

cam_viewport=cam_viewport)

#framebuffer_copy_texture = Texture(

# texels=screen.get_framebuffer_as_image(format=gl.GL_RGBA) )

filename ='/home/floris/20070424_127.jpg'

framebuffer_copy_texture = Texture(filename)

screen_rect = TextureStimulus3D(

texture = framebuffer_copy_texture,

shrink_texture_ok=True,

internal_format=gl.GL_RGBA,

mipmaps_enabled=False, # don't pretend to do mipmaps on every frame

)

result['framebuffer_texture_object']=(

screen_rect.parameters.texture.get_texture_object())

def make3d(tup):

return (tup[0],tup[1],-1.0)

# set these to the corners of the rectangle being projected:

screen_rect.set(

lowerleft=make3d(corners_2d[0]),

upperleft=make3d(corners_2d[1]),

upperright=make3d(corners_2d[2]),

lowerright=make3d(corners_2d[3]),

)

result['display_stimuli']=[screen_rect]

):

os.environ['SDL_VIDEO_WINDOW_POS']="0,0"

screen=Screen(size=(1024,768),

bgcolor=(0,0,0),

alpha_bits=8,

frameless=True

#fullscreen=True,

)

if 1:

# this loads faster, for debugging only

mipmaps_enabled=False

else:

mipmaps_enabled=True

DEBUG='none' # no debugging

#DEBUG='flicker' # alternate views on successive frames

vr_walls = {}

########## WALL 2 #################

if 1:

# order: LL, UL, UR, LR

# -y wall

# load data file

filename = '/home/floris/data/calibrations/projector/flydra_data_20100816_141544'

fd = open( filename, mode='r')

data = pickle.load(fd)

# find best fit plane

C = VR_math.ensure_coplanar(data,also_ensure_parallel=True)

corners_3d = [

# LL

(C[1,0], C[1,1], C[1,2]),

# UL

(C[0,0], C[0,1], C[0,2]),

# UR

(C[2,0], C[2,1], C[2,2]), #-0.49650067090988159

# LR

(C[3,0], C[3,1], C[3,2]), #-0.52826571464538574

]

corners_2d = [

# LL

(513, 1),

# UL

(513,768),

#UR

(1024,550),

# LR

(1024,50),

]

name = '-y'

approx_view_dir = None

vr_wall_dict = get_wall_dict( SHOW, screen,

corners_3d, corners_2d,

approx_view_dir,name)

vr_walls[name] = vr_wall_dict

########## WALL 3 #################

if 1:

# order: LL, UL, UR, LR

# -y wall

# load data file

filename = '/home/floris/data/calibrations/projector/flydra_data_20100816_141500'

fd = open( filename, mode='r')

data = pickle.load(fd)

# find best fit plane

C = VR_math.ensure_coplanar(data,also_ensure_parallel=False)

#C = np.random.random(C.shape)

corners_3d = [

# LL

(C[3,0], C[3,1], C[3,2]),

# UL

(C[2,0], C[2,1], C[2,2]),

# UR

(C[0,0], C[0,1], C[0,2]), #-0.49650067090988159

# LR

(C[1,0], C[1,1], C[1,2]), #-0.52826571464538574

]

corners_2d = [

# LL

(1,50),

# UL

(1,620),

# UR

(512,768),

# LR

(512,1),

]

name = '+x'

approx_view_dir = None

vr_wall_dict = get_wall_dict( SHOW, screen,

corners_3d, corners_2d,

approx_view_dir,name)

vr_walls[name] = vr_wall_dict

screen_stimuli = []

for wall in vr_walls.itervalues():

screen_stimuli.extend( wall['display_stimuli'] )

display_viewport = Viewport(

screen=screen,

stimuli=screen_stimuli,

)

# OpenGL textures must be power of 2

def next_power_of_2(f):

return math.pow(2.0,math.ceil(math.log(f)/math.log(2.0)))

fb_width_pow2 = int(next_power_of_2(screen.size[0]))

fb_height_pow2 = int(next_power_of_2(screen.size[1]))

frame_timer = FrameTimer()

# draw static white walls

draw_stimuli = True

for wallname,wall in vr_walls.iteritems():

screen.set(bgcolor=BGCOLOR)

screen.clear() # clear screen

wall['cam_viewport'].draw()

if 0:

framebuffer_texture_object = wall['framebuffer_texture_object']

# copy screen back-buffer to texture

framebuffer_texture_object.put_new_framebuffer(

size=(fb_width_pow2,fb_height_pow2),

internal_format=gl.GL_RGB,

buffer='back',

)

screen.set(bgcolor=(0.0,0.0,0.0)) #black

screen.clear() # clear screen

display_viewport.draw() # draw the viewport and hence the stimuli

swap_buffers() # swap buffers

quit_now = False

while not quit_now:

# infinite loop to draw stimuli

# test for keypress or mouseclick to quit

for event in pygame.event.get():

if event.type in (QUIT,MOUSEBUTTONDOWN):

#if event.type in (QUIT,KEYDOWN,MOUSEBUTTONDOWN):

quit_now = True